In an hour we were at the Chennai Airport, refuelled and flew again for Colombo. The plane landed around 5 AM and I was sure that no way I would be able to catch the train for Kandy for which I had made an advance payment. Yes, I did miss it. Immigration and baggage collection took another hour. Finally, I was out of the airport around 7 AM.
Suggestion: The best way to reach Colombo Fort Railway station is to take Bus No. 187. It takes an hour to get to the fort and charges only 120LRK. If you opt for a tuk-tuk it may charge a hefty sum like 1000LRK or more.